From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B6BDC43382 for ; Tue, 25 Sep 2018 18:16:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F7FC21480 for ; Tue, 25 Sep 2018 18:16:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2F7FC21480 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727402AbeIZAZa (ORCPT ); Tue, 25 Sep 2018 20:25:30 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:51734 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726335AbeIZAZ3 (ORCPT ); Tue, 25 Sep 2018 20:25:29 -0400 Received: from localhost (ip-213-127-77-73.ip.prioritytelecom.net [213.127.77.73]) by mail.linuxfoundation.org (Postfix) with ESMTPSA id 5E6951028; Tue, 25 Sep 2018 18:16:44 +0000 (UTC) Date: Tue, 25 Sep 2018 20:15:48 +0200 From: Greg Kroah-Hartman To: Nadav Amit Cc: Arnd Bergmann , linux-kernel@vger.kernel.org, Xavier Deguillard , "Michael S. Tsirkin" , Jason Wang , linux-mm@kvack.org, virtualization@lists.linux-foundation.org Subject: Re: [PATCH v2 00/20] vmw_balloon: compaction, shrinker, 64-bit, etc. Message-ID: <20180925181548.GB25458@kroah.com> References: <20180920173026.141333-1-namit@vmware.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180920173026.141333-1-namit@vmware.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Sep 20, 2018 at 10:30:06AM -0700, Nadav Amit wrote: > This patch-set adds the following enhancements to the VMware balloon > driver: > > 1. Balloon compaction support. > 2. Report the number of inflated/deflated ballooned pages through vmstat. > 3. Memory shrinker to avoid balloon over-inflation (and OOM). > 4. Support VMs with memory limit that is greater than 16TB. > 5. Faster and more aggressive inflation. > > To support compaction we wish to use the existing infrastructure. > However, we need to make slight adaptions for it. We add a new list > interface to balloon-compaction, which is more generic and efficient, > since it does not require as many IRQ save/restore operations. We leave > the old interface that is used by the virtio balloon. > > Big parts of this patch-set are cleanup and documentation. Patches 1-13 > simplify the balloon code, document its behavior and allow the balloon > code to run concurrently. The support for concurrency is required for > compaction and the shrinker interface. > > For documentation we use the kernel-doc format. We are aware that the > balloon interface is not public, but following the kernel-doc format may > be useful one day. I applied the first 16 patches. Please fix up 17 and resend. thanks, greg k-h